[feature request] Change iframe size when debugKit iframe shows an error

[hacheraw]

In some cases, when there's an application error (usually error 5xx or routes one) the DebugKit iframe looks like the above picture.

Would it be possible to add a css class to the iframe if an error template is shown inside? Or just change it's size.

Wanted behavior: iFrame is 40x40px by default. When an error is thrown, iFrame should be, maybe, 40% by 40% so we can see the error.